The boxing great had spent most of the 20-minute session selling his mega-money clash with UFC fighter Conor McGregor that takes place this weekend at the T-Mobile Arena.

But he had one more thing to say, one more sell to make before he departed the scene and that was for his recently-opened gentleman’s club just off the Strip here in Las Vegas.

“We will be at the Girl Collection tonight,” he explained. “I better see all of you there.”

The ultimate salesman inside and outside of the sport it seems.

Mayweather has been the pay-per-view star of boxing for the last decade and three of his 49 fights have generated the most money in the history of the sport.

Inside Floyd Mayweather's Big Boy Mansion – it's so big it has its OWN Instagram account!

Boxer Floyd Mayweather isn't shy of flashing the cash. In fact, he's so proud of his lavish lifestyle his house has its own Instagram account! Take a peek inside the Big Boy Mansion

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His clash with Manny Pacquiao two years ago remains the richest ever boxing event having grossed £465m.

But this weekend’s bout with the mammoth-mouth McGregor could surpass that.

Even though many think it will be a walk in the park for the 49-0 boxing veteran against a debutant in the sport, he has still sold it to be a mega event and there is no doubting it is no matter what you think of the fight itself.

Millions will buy this event around the world with most intrigued to see what actually unfolds despite the bizarreness of it all.

The casual sports fans are gripped by it, the MMA aficionados are backing their man to shock the world while the diehard boxing supporters will no doubt take a peek because curiosity will get the better of them.

Obviously McGregor’s stardom in MMA, his brash nature and his appeal to the millennials is a key reason why this could break all the records.

The worldwide press tour where both men continually swore at each other while thousands of fans roared them on will help.

And a clash between the pair at Tuesday grand arrival event in the searing heat outside the arena that ended with their entourages pushing and shoving each other have all added to the worldwide interest.

But Mayweather has played his part by downplaying his skills because of his age and highlighting that his two-year absence from the ring could leave him rusty.

Yet he is also promising a rare stoppage win, with his last being in 2011, and paying back fans who were left disappointed by his comfortable points win over Pacquiao in 2015.